Jeep 1997 Grand Cherokee Service Manual page 82

AXLE HOUSING
PINION YOKE PINION YOKE INCH
3 - 24 DIFFERENTIAL AND DRIVELINE
REMOVAL AND INSTALLATION (Continued)
Fig. 13 Pinion Yoke Installation
CAUTION: Do not exceed the minimum tightening
torque when installing the pinion yoke retaining nut
at this point. Damage to collapsible spacer or bear-
ings may result.
(3) Install the pinion washer and a new nut on the
pinion gear. Tighten the nut only enough to
remove the shaft end play.
(4) Rotate the pinion shaft using a (in. lbs.) torque
wrench. Rotating torque should be equal to the read-
ing recorded during removal, plus an additional 0.56
N·m (5 in. lbs.) (Fig. 14).
Fig. 14 Check Pinion Rotation Torque
(5) If the rotating torque is low, use Holder 6958 to
hold the pinion yoke (Fig. 15), and tighten the pinion
POUND WRENCH TORQUE TOOL 6958
shaft nut in 6.8 N·m (5 ft. lbs.) increments until
proper rotating torque is achieved.
CAUTION: If the maximum tightening torque is
reached prior to reaching the required rotating
torque, the collapsible spacer may have been dam-
aged. Replace the collapsible spacer.
Fig. 15 Tightening Pinion Shaft Nut
(6) Align the installation reference marks on the
propeller shaft and yoke, or pinion flange, and install
the propeller shaft.
(7) Check and fill the gear lubricant. Refer to the
Lubricant Specifications for gear lubricant require-
ments.
(8) Install the brake rotors and calipers. Refer to
Group 5, Brakes, for proper procedures.
(9) Install wheel and tire assemblies.
(10) Lower the vehicle.
COLLAPSIBLE SPACER
REMOVAL W/PINION INSTALLED
(1) Raise and support the vehicle.
(2) Remove wheel and tire assemblies.
(3) Remove brake rotors and calipers. Refer to
Group 5, Brakes, for proper procedures.
(4) Mark the propeller shaft and pinion yoke, or
pinion flange, for installation reference.
(5) Remove the propeller shaft from the yoke, or
pinion flange.
(6) Rotate the pinion gear three or four times.
(7) Measure the amount of torque necessary to
rotate the pinion gear with a (in. lbs.) dial-type
PINION FLANGE FRONTAXLE
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